kernel.git/arch/powerpc/platforms/maple, branch linux-2.6.25.y

[POWERPC] Use and not variants.

2008-01-17T03:58:57Z

Signed-off-by: Jon Loeliger Signed-off-by: Paul Mackerras

[POWERPC] Make non-PCI build work again

2007-12-21T11:14:08Z

Maple and pasemi both require PCI as does CONFIG_OF_PLATFORM_PCI. The default setting of CONFIG_ISA_DMA_API is set to match the protection around the relevant routines in asm/dma.h. I also had to remove the PMAC platform from the combined build. The precis is that to build a 64 bit kernel with no PCI, you can only include pSeries and iSeries. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[POWERPC] pci_controller->arch_data really is a struct device_node *

2007-12-11T02:42:37Z

Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras

remove asm/bitops.h includes

2007-10-19T18:53:41Z

remove asm/bitops.h includes including asm/bitops directly may cause compile errors. don't include it and include linux/bitops instead. next patch will deny including asm header directly. Cc: Adrian Bunk Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[POWERPC] maple pci_ops: Use named structure member initializers

2007-08-17T01:01:53Z

Signed-off-by: Nathan Lynch Signed-off-by: Paul Mackerras

[POWERPC] Remove gratuitous reads from maple PCI config space methods

2007-08-17T01:01:53Z

The maple PCI configuration space write methods read the written location immediately after the write is performed, presumably in order to flush the write. However, configuration space writes are not allowed to be posted, making these reads gratuitous. Furthermore, this behavior potentially causes us to violate the PCI PM spec when changing between e.g. D0 and D3 states, because a delay of up to 10ms may be required before the OS accesses configuration space after the write which initiates the transition. It definitely causes a system hang for me with a Broadcom 5721 PCIE network adapter, which is fixed by this change. Therefore this removes the gratuitous reads from u3_agp_write_config, u3_ht_write_config, and u4_pcie_write_config. Signed-off-by: Nathan Lynch Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Fix Maple platform ISA bus

2007-07-26T06:17:49Z

The Maple platform has ISA IOs but didn't call the new functions to actually map those, thus crashing when trying to access the nvram. This fixes Maple and JS2x using SLOF. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] rename add_bridge to avoid namespace clashes

2007-06-29T06:56:23Z

Many platforms currently define their own add_bridge function, some of them globally. This breaks some multiplatform configurations. Prefixing each of these functions with the platform name avoids this problem. Signed-off-by: Arnd Bergmann

[POWERPC] Rewrite IO allocation & mapping on powerpc64

2007-06-14T12:29:56Z

This rewrites pretty much from scratch the handling of MMIO and PIO space allocations on powerpc64. The main goals are: - Get rid of imalloc and use more common code where possible - Simplify the current mess so that PIO space is allocated and mapped in a single place for PCI bridges - Handle allocation constraints of PIO for all bridges including hot plugged ones within the 2GB space reserved for IO ports, so that devices on hotplugged busses will now work with drivers that assume IO ports fit in an int. - Cleanup and separate tracking of the ISA space in the reserved low 64K of IO space. No ISA -> Nothing mapped there. I booted a cell blade with IDE on PIO and MMIO and a dual G5 so far, that's it :-) With this patch, all allocations are done using the code in mm/vmalloc.c, though we use the low level __get_vm_area with explicit start/stop constraints in order to manage separate areas for vmalloc/vmap, ioremap, and PCI IOs. This greatly simplifies a lot of things, as you can see in the diffstat of that patch :-) A new pair of functions pcibios_map/unmap_io_space() now replace all of the previous code that used to manipulate PCI IOs space. The allocation is done at mapping time, which is now called from scan_phb's, just before the devices are probed (instead of after, which is by itself a bug fix). The only other caller is the PCI hotplug code for hot adding PCI-PCI bridges (slots). imalloc is gone, as is the "sub-allocation" thing, but I do beleive that hotplug should still work in the sense that the space allocation is always done by the PHB, but if you unmap a child bus of this PHB (which seems to be possible), then the code should properly tear down all the HPTE mappings for that area of the PHB allocated IO space. I now always reserve the first 64K of IO space for the bridge with the ISA bus on it. I have moved the code for tracking ISA in a separate file which should also make it smarter if we ever are capable of hot unplugging or re-plugging an ISA bridge. This should have a side effect on platforms like powermac where VGA IOs will no longer work. This is done on purpose though as they would have worked semi-randomly before. The idea at this point is to isolate drivers that might need to access those and fix them by providing a proper function to obtain an offset to the legacy IOs of a given bus. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Rename device_is_compatible to of_device_is_compatible

2007-05-07T10:31:14Z

for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras